Results 261 to 270 of about 2,554,272 (326)

Time Constants of the Vestibular Thermal Reaction

Acta Oto-Laryngologica, 1989
For the thermal test, adaptation time constants of about 100 s are described in the literature. By automatically alternating hot-cold irrigation, as designed by us, precision of stimulus application of different temperatures was considerably improved. Furthermore, temperature was registered with a thermocouple device.
U, Reker, J, Müller-Deile
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Time constants in thermal laser medicine: II. Distributions of time constants and thermal relaxation of tissue

Physics in Medicine and Biology, 1996
The thermal response of a semi-infinite medium in air, irradiated by laser light in a cylindrical geometry, cannot accurately be approximately by single radial and axial time constants for heat conduction. This report presents an analytical analysis of hear conduction where the thermal response is expressed in terms of distributions over radial and ...
van Gemert, M. J., Lucassen, G. W., Welch, A. J.   +2 more
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Thermal conductance and its relation to thermal time constants

Journal of Thermal Biology, 1981
Abstract A large body of thermoregulation studies exists in which the proper relationship between the physiological variable, thermal conductance, and heating or cooling time is not recognized. This is owing, in part, to conflicting definitions of conductance which either fail to relate to mean heat flow through the body surface or which fail to ...
Stanley L. Robertson, E.Norbert Smith
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Thermal time constants in differential scanning calorimetry

Thermochimica Acta, 1992
Abstract We have examined thermal gradients in a differential scanning calorimeter. We quantified, as a function of sample heat capacity, the thermal lag, Δ T between sample and calorimeter. We found that Δ T = β(τ x + R 0 C s )+ Δ T c ; where β is the heating rate, Δ T c is a constant, C s is the total heat capacity of the sample and ...
M.E. Patt, B.E. White, B. Stein, E.J. Cotts   +3 more
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Thermal time constants in SOI-MOSFETs

1991 IEEE International SOI Conference Proceedings, 1991
The authors present detailed theoretical considerations and a first-order analytical model for the dynamical behavior of self heating in SOIMOS (silicon-on-insulator metal oxide semiconductor). They show the results of the simulated spreading of heat when switching a SOIMOS in the on-state.
M. Berger, G. Burbach
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The Thermal Time Constants of Dynamo-Electric Machines

Transactions of the American Institute of Electrical Engineers, 1925
Considering the thermal behavior of a dynamo-electric machine intended for continuous service, its acceptance tests require, at present, only a limiting temperature elevation under a continuous rated load. For the intelligent operation of a machine after it has been put in service, additional information is desirable concerning its thermal behavior ...
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The Time Decay Constants in Neutron Thermalization

Nuclear Science and Engineering, 1963
We examine herein the decay constants, λk which appear in the modal expansion of the neutron density in a study of the time-dependent thermalization of neutrons.
Noel Corngold, Paul Michael, Warren Wollman   +2 more
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Bulk mode piezoresistive thermal oscillators: time constants and scaling

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2015
This paper presents design and analysis for engineering the thermal and mechanical time constants of piezoresistive thermal oscillators. The optimal design is obtained by minimizing the threshold current density required to initiate self-sustained oscillations.
Subramanian, Sundaram, Dana, Weinstein
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The Thermal Time Constant of an Electrothermal Microcantilever Resonator

Micro and Nanosystems, 2023
Background: The thermal time constant is the core parameter for determining the dynamic response of the electrothermal actuators and the corresponding maximum operational frequency. Aim: Since it is necessary to determine how the thermal actuation is taking place within the cantilever, this paper presents two models for the thermal time constant of ...
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Thermal-time constant imaging in cold-stress screening

2015 Signal Processing: Algorithms, Architectures, Arrangements, and Applications (SPA), 2015
This paper presents the use of active thermography as the tool of medical imaging technique. The cold stress method is used to stimulate human skin and measure its temperature change in time. Image and data processing techniques are applied to calculate response parameters and plot theirs spatial distribution.
Maria Strakowska, Robert Strakowski, Michal Strzelecki   +2 more
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